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Entry  Wed Mar 3 00:22:05 2010, Dmass, Electronics, General, OP AMP WOES 
    Reply  Wed Mar 3 08:39:41 2010, rana, Electronics, General, OP AMP WOES 
Message ID: 629     Entry time: Wed Mar 3 08:39:41 2010     In reply to: 628
Author: rana 
Type: Electronics 
Category: General 
Subject: OP AMP WOES 

Woe.  The noise of the 50 Ohm resistor is ~1 nV/rHz. The gain of your opamp is 100k/50 = 2000. So the output noise should be at least 2 uV/rHz.

Its better to diagnose the noise by not having the resistor there and/or to put the PD there. I have also added the LT1792 to the LISO SVN.

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